so was this just a light upgrade or a whole new tank? I have the standard AP24 with the PC lights and am wondering about upgrading this summer. So far my corals are growing well but arguably they are your basic zoos, brain, 'shrooms and xenia. Regardless this is my learning tank before the "Big Boy" so we shall see. BTW what is the output on those lights, how much and where did you get them from (just for price comparision).